CAJ | 학술논문

弹道目标微动叠加在弹道高速平动基础上，为了获得目标的微多普勒信息，需要对平动进行补偿。该文提出了一种基于延迟共轭相乘的平动参数估计方法，该方法通过延迟共轭相乘保留平动信息而消除微动的影响，并将平动参数估计问题转换为多项式相位信号参数估计问题，实现了平动参数的估计。仿真结果表明，所提算法能够在较低信噪比下实现平动参数的高精度补偿。
탄도목표미동첩가재탄도고속평동기출상，위료획득목표적미다보륵신식，수요대평동진행보상。해문제출료일충기우연지공액상승적평동삼수고계방법，해방법통과연지공액상승보류평동신식이소제미동적영향，병장평동삼수고계문제전환위다항식상위신호삼수고계문제，실현료평동삼수적고계。방진결과표명，소제산법능구재교저신조비하실현평동삼수적고정도보상。
The micro-motion is combined with the high velocity of translation motion for ballistic targets. The translation motion should be compensated for micro-Doppler information extraction. A new method based on delay conjugate multiplication is proposed to compensate the translation motion of ballistic target. By delay conjugate multiplication of the received signal, the micro-Doppler information are canceled out and the translation motion parameters estimation problem is transformed as an multi-polynomial phase signal parameters estimation problem. Thus, the translation parameters can be estimated. Simulation results suggest that the proposed algorithm can achieve high-precision compensation for ballistic targets under low SNR.